144 Of Animalcula in Fluids s 
mals proceeded from the eggs of their parent animals^ 
wafted thither in the air, fince thofe which had beers 
brought there in the hay^ were totally deftroy’d by its 
being boiled in Water. 
A compofition of feveral infufions mixed toge¬ 
ther in one vefiel. 
T AKE equal parts of an infulion of fenrta, of raf* 
berry flalks, and of hay, &c. mix thefe all together, 
.and half an hour afterwards take as ufual a fmall drop of 
this mixture, which being put upon the object carrying 
glafs, and placed before the microfcope, will give you 
the pleafure of feeing in this little drop, the animalcula of 
all the infufions you have mix’d together. u And here it 
is proper to take notice, that all thefe different animal- 
cula cannot fubfifi long in this mixture, each being de- 
firous to remain in its firfl infufion, therefore all forts or 
infufions are not proper to afford the pleafure of this 
fight, for they ought to contain in them fomething upon 
which the animals can fubfifi. 
An infufion of rhubarb. 
R Hubarb is a purgative drug, and muff: be a long 
time infufed in water before any animalcula can 
be found therein, or any difagreeable fmeil, for in about 
five weeks there was found only one fort of animalcula, 
which does not merit a particular defcription \ we fhaM 
only fay that the mixture of a drop of this infufion, 
with as much of that of fenna, does not deftroy the ani¬ 
malcula in either ; and that at the end of fiteen days the 
animalcula in the infufion of rhubarb x were all dead. 
Of 
14 Joblott’s Qbfi p. 40. x Ibid p. 48. 
